Feng Yu filtration equipment Shanghai Co., Ltd. knife DF series of self-cleaning filter (referred to as filter DF), DF filters to remove particulate contaminants automatically filter element surfaces by mechanically efficient reciprocating straight line continuity can be filtered, DF accuracy range 25-3000 micron filter, and the filtered water suitable for viscous liquids, suitable viscosity up to 30,000 cps.

Conventional filters frequently block viscous materials and soft impurities. Customers are forced to choose large filters or perform frequent backwashing. The investment is heavy, the work is heavy, and the materials and materials are wasted. The DF filter can easily solve such problems with advanced self-cleaning operation mode. It always keeps the filter element clean, and discharges waste liquid with high concentration of impurities, wastes materials, filters poor water quality and adhesive, resin, polymer. , viscous materials such as paints, greases, etc. are extremely advantageous and more efficient. With its remarkable technical advantages and low life cycle cost, DF filters are gradually replacing traditional manual filters such as vibrating screens, bag-type, basket filters, and some recoil-type self-cleaning filters in many fields .

How DF filters work

Filtration state: The liquid flows in from the inlet of the filter, flows from top to bottom, and flows through the inner surface of the filter element to the outlet; when a certain amount of impurities is collected on the surface of the filter element, the cleaning process is started periodically or according to the set pressure difference.

Cleaning state: the cylinder drives the scraper to descend slowly, scraping off the surface impurities of the filter element, pushing it to the collection chamber, and then slowly lifting the further scraping impurities. This part of the impurities goes down, the liquid falls into the collection chamber through the scraper, and the cleaning is repeated several times. Until the filter element is clean.

Sewage discharge state: When a certain amount of impurities is accumulated, the drain valve automatically opens and discharges the liquid containing high concentration impurities, and the discharged residual liquid can be recovered or discharged.

* The DF filter scraper is equipped with special compensation components so that the scraper always fits snugly against the inner surface of the filter element.

Technical characteristics and advantages

â–  Straight reciprocating scraping, directly scraping impurities off the surface of the filter

â–  Simple structure, easy to open, clean and maintain

â–  Online continuous filtration, fully automatic operation, end of heavy filter replacement cleaning work

â–  Does not produce disposable filter materials, saving consumables and environmental treatment costs

â–  Filtration pressure loss is very small, flow rate is stable, saving pipeline energy consumption, which is conducive to continuous and stable process

â–  Closed filtration to prevent leakage of hazardous materials, which is conducive to safe production

â–  Unique V-SLOT filter element, uniform opening height, smooth surface, easy to scrape, high strength, long life

â–  Emission waste liquid has high impurity concentration and can be recycled to avoid loss of high-value materials

â–  Multiple module combinations and powerful automation modes are available to meet various filtering application requirements

â–  Use world-renowned high-quality components, high reliability, minimal maintenance, low operating costs

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